25163155 has 8 divisors (see below), whose sum is σ = 31237200. Its totient is φ = 19436256.

The previous prime is 25163153. The next prime is 25163161. The reversal of 25163155 is 55136152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25163155 - 2¹ = 25163153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25163153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86625 + ... + 86914.

It is an arithmetic number, because the mean of its divisors is an integer number (3904650).

Almost surely, 2^25163155 is an apocalyptic number.

25163155 is a deficient number, since it is larger than the sum of its proper divisors (6074045).

25163155 is a wasteful number, since it uses less digits than its factorization.

25163155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173573.

The product of its digits is 4500, while the sum is 28.

The square root of 25163155 is about 5016.2889669556. The cubic root of 25163155 is about 293.0364858834.

It can be divided in two parts, 2516 and 3155, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 25163155 in words is "twenty-five million, one hundred sixty-three thousand, one hundred fifty-five".